| 000 | 01766nab a2200313 c 4500 | ||
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| 001 | vtls000583259 | ||
| 003 | RU-ToGU | ||
| 005 | 20230319211528.0 | ||
| 007 | cr | | ||
| 008 | 171003|2017 xxu s a eng d | ||
| 024 | 7 |
_a10.1103/PhysRevD.95.092004 _2doi |
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| 035 | _ato000583259 | ||
| 040 |
_aRU-ToGU _brus _cRU-ToGU |
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| 245 | 1 | 0 |
_aImproved measurements of branching fractions for ηc →φφ and ωφ _cM. Ablikim, M. N. Achasov, X. C. Ai [et.al.] |
| 504 | _aБиблиогр.: 30 назв. | ||
| 520 | 3 | _aUsing 223.7 1.4 106 J=ψ events accumulated with the BESIII detector, we study ηc decays to ϕϕ and ωϕ final states. The branching fraction of ηc → ϕϕ is measured to be Brηc → ϕϕ 2.5 0.30.3 −0.7 0.6 10−3, where the first uncertainty is statistical, the second is systematic, and the third is from the uncertainty of BrJ=ψ → γηc. No significant signal for the double Okubo-Zweig-Iizuka suppressed decay of ηc → ωϕ is observed, and the upper limit on the branching fraction is determined to be Brηc → ωϕ < 2.5 10−4 at the 90% confidence level. | |
| 653 | _aBESIII, детектор | ||
| 653 | _aBEPCII, коллайдер | ||
| 655 | 4 |
_aстатьи в журналах _9879358 |
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| 700 | 1 |
_aAblikim, M. _9117568 |
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| 700 | 1 |
_aAi, X. C. _9117570 |
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| 700 | 1 |
_aChelkov, G. A. _996983 |
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| 700 | 1 |
_aAchasov, M. N. _9117569 |
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| 773 | 0 |
_tPhysical Review D _d2017 _gVol. 95, № 9. P. 092004-1-092004-13 _x1550-7998 |
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| 852 | 4 | _aRU-ToGU | |
| 856 | 7 | _uhttp://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000583259 | |
| 908 | _aстатья | ||
| 999 | _c426951 | ||